DH-3US1 - Water heater PANASONIC - Free user manual and instructions
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| Product Type | Point-of-Use Electric Tank Water Heater |
| Capacity | 2.5 gallons (9.5 liters) |
| Power Rating | 1500 W at 120 V |
| Voltage | 120 V AC |
| Temperature Range | 65–145 °F (18–63 °C) |
| Dimensions (H x W x D) | 13.4 x 12.6 x 10.6 inches (34 x 32 x 27 cm) |
| Weight | 11.5 lb (5.2 kg) |
| Water Connection | 1/2 inch NPT |
| Safety Features | Overheat protection, temperature pressure relief valve, flammable vapor ignition resistant (FVIR) system |
| Material | Stainless steel tank with foam insulation |
| Energy Factor | 0.91 |
| Installation Type | Wall-mounted (bracket included) |
| Max Pressure | 150 psi |
| Recovery Rate | 7.5 gallons per hour at 90°F rise |
| Maintenance | Drain tank quarterly, replace anode rod every 3-5 years |
| Warranty | 6 years limited warranty |
Frequently Asked Questions - DH-3US1 PANASONIC
Can I install the Panasonic DH-3US1 myself?
Installation should be performed by a licensed plumber or electrician due to local codes and safety requirements. The unit must be connected to a dedicated 120V circuit.
What size room is suitable for this water heater?
The DH-3US1 is designed for under-sink or point-of-use applications, fitting in tight spaces like a sink cabinet. Ensure at least 6 inches clearance for ventilation.
How do I adjust the temperature?
Use the front thermostat dial. Turn it clockwise for higher temperatures (max 145°F) and counterclockwise for lower (min 65°F). Always verify with a thermometer.
What happens if the water gets too hot?
The unit has an automatic thermal cutoff that shuts off power if water exceeds 165°F. The temperature pressure relief valve also releases excess pressure.
How often should I flush the tank?
Drain and flush the tank every 3 months to remove sediment, which improves efficiency and extends the life of the heating elements.
Is the anode rod replaceable?
Yes, the anode rod is replaceable. Check it annually and replace every 3-5 years to prevent tank corrosion. Use only Panasonic-approved rods.
What is the energy consumption of this heater?
At 1500W, running for one hour uses 1.5 kWh. However, the thermostat cycles on/off, so average daily usage depends on hot water demand.
Can I use this for a whole house?
No, the DH-3US1 is designed for point-of-use (e.g., a single sink) due to its small 2.5-gallon capacity and 1500W power.
What if the water tastes metallic?
Metallic taste may indicate a worn anode rod. Replace the rod. Also, flush the tank to remove any accumulated metallic particles.
Does it require a pressure relief valve?
Yes, a temperature and pressure relief valve is included and must be installed properly. Ensure the discharge pipe is directed to a safe drain.
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